42132423421 has 8 divisors (see below), whose sum is σ = 46050532704. Its totient is φ = 38228962320.

The previous prime is 42132423419. The next prime is 42132423451. The reversal of 42132423421 is 12432423124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42132423421 - 2¹ = 42132423419 is a prime.

It is a super-2 number, since 2×42132423421² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42132423421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42132423451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3656026 + ... + 3667531.

It is an arithmetic number, because the mean of its divisors is an integer number (5756316588).

Almost surely, 2^42132423421 is an apocalyptic number.

It is an amenable number.

42132423421 is a deficient number, since it is larger than the sum of its proper divisors (3918109283).

42132423421 is a wasteful number, since it uses less digits than its factorization.

42132423421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7324091.

The product of its digits is 9216, while the sum is 28.

Adding to 42132423421 its reverse (12432423124), we get a palindrome (54564846545).

The spelling of 42132423421 in words is "forty-two billion, one hundred thirty-two million, four hundred twenty-three thousand, four hundred twenty-one".